DUBOIS Meaning of DUBOIS in English I Dubois French or Dutch family name BrE AmE du ˈbwɑː dju- —French [ dy bwa ]II Dubois, Du Bois American family name BrE AmE du ˈbɔɪs də-, -ˈbɔɪz Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012